I have a case on my phone because I can't stand to have too much stuff in my pockets and so I leave it laying around at work and it needs protection. I'm currently using an Urban Armor Gear case and its been perfect. Doesn't affect signal strength, has a hole cut out in the power button section so i still get to use the ir features. I've dropped it from at least 10 feet, directly on its face and the rubber surrounding has protected it.﻿